Ahmad, Jamil, Muhammad Umar, Syed Shujaat karim, Muhammad amaduddin, Feroz Shah, and Iltaf Hussain. 2017. “Design of a Car Wash Waste Water Treatment Process for Local Car Wash Stations”. Journal of the Pakistan Institute of Chemical Engineers 45 (2). http://piche.org.pk/journal/index.php/jpiche/article/view/371.